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Fundamental And Derived Quantities And Units - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

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  • 8 Questions around this concept.

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Which of the following is a derived quantity?

Which of the following is a fundamental quantity?

Concepts Covered - 1

Fundamental and Derived Quantities

1) Fundamental Quantities

  • Those physical quantities are independent of all other quantities and cannot be expressed in terms of other basic quantities.
  • These quantities are also called absolute /basic quantities.
  • Length, mass, time, electric current, temperature, amount of substance and luminous intensity.

2) Derived Quantities

  • Derived Quantities are products and ratios of the fundamental quantities that exist in a system of units and these quantities can be expressed in terms of other basic quantities.
  • e.g., Area, Density, Force, Pressure, etc.
  • So l= length of the square is a fundamental quantity.
  • But the area of square=A=lis Derived Quantity which we get with the help of taking a square of the length.

Fundamental and derived units:-

Fundamental units:- The units of fundamental or basic quantities are called fundamental units or base units.

Derived units:- The units of those physical quantities which can be expressed as the combination of fundamental units are called derived units.

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Fundamental and Derived Quantities

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